Full Text:   <4005>

Summary:  <776>

CLC number: U270.1+1

On-line Access: 2014-12-04

Received: 2014-07-04

Revision Accepted: 2014-10-07

Crosschecked: 2014-11-24

Cited: 19

Clicked: 11377

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Xue-song JIN

http://orcid.org/0000-0003-3033-758X

Liang LING

http://orcid.org/0000-0002-9574-4875

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Journal of Zhejiang University SCIENCE A 2014 Vol.15 No.12 P.964-983

http://doi.org/10.1631/jzus.A1400192


A 3D model for coupling dynamics analysis of high-speed train/track system*


Author(s):  Liang Ling, Xin-biao Xiao, Jia-yang Xiong, Li Zhou, Ze-feng Wen, Xue-song Jin

Affiliation(s):  . State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu 610031, China

Corresponding email(s):   xsjin@home.swjtu.edu.cn

Key Words:  High-speed railway, High-speed train, Track, Entire-train/track model (TTM), Single-vehicle/track model (VTM)


Liang Ling, Xin-biao Xiao, Jia-yang Xiong, Li Zhou, Ze-feng Wen, Xue-song Jin. A 3D model for coupling dynamics analysis of high-speed train/track system[J]. Journal of Zhejiang University Science A, 2014, 15(12): 964-983.

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author="Liang Ling, Xin-biao Xiao, Jia-yang Xiong, Li Zhou, Ze-feng Wen, Xue-song Jin",
journal="Journal of Zhejiang University Science A",
volume="15",
number="12",
pages="964-983",
year="2014",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1400192"
}

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%T A 3D model for coupling dynamics analysis of high-speed train/track system
%A Liang Ling
%A Xin-biao Xiao
%A Jia-yang Xiong
%A Li Zhou
%A Ze-feng Wen
%A Xue-song Jin
%J Journal of Zhejiang University SCIENCE A
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1400192

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T1 - A 3D model for coupling dynamics analysis of high-speed train/track system
A1 - Liang Ling
A1 - Xin-biao Xiao
A1 - Jia-yang Xiong
A1 - Li Zhou
A1 - Ze-feng Wen
A1 - Xue-song Jin
J0 - Journal of Zhejiang University Science A
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.A1400192


Abstract: 
A 3D dynamic model of a high-speed train coupled with a flexible ballast track is developed and is presented in this study. In this model, each vehicle is modeled as a 42 degrees of freedom multi-body system, which takes into consideration the nonlinear dynamic characteristics of the suspensions. A detailed inter-vehicle connection model including nonlinear couplers and inter-vehicle dampers, and the linear tight-lock vestibule diaphragm is established to simulate the effect of the end connections of neighboring vehicles on dynamic behavior. The track is modeled as a traditional three-layer discrete elastic support model. The rails are assumed to be Timoshenko beams supported by discrete sleepers. Each sleeper is treated as an Euler beam and the ballast bed is replaced by equivalent rigid ballast bodies. The reliability of the present model is then validated through a detailed numerical simulation comparison with the commercial software SIMPACK, with the effect of the track flexibility on the train/track interaction being analyzed simultaneously. The proposed model is finally applied to investigate the difference between dynamic performances obtained using the entire-train/track model (TTM) and the single-vehicle/track model (VTM). Several key dynamic performances, including vibration frequency response, ride comfort, and curving performance, calculated by the two types of dynamic models are compared and discussed. The numerical results show that there is a significant difference between the dynamic behaviors obtained by VTM and TTM, and that inter-vehicle connections have an important influence on the dynamic behavior of high-speed vehicles.

一种高速列车-轨道三维空间耦合动力学模型

基于车辆-轨道耦合动力学理论分析方法,建立一种高速列车-轨道三维耦合动力学模型,并明确列车-轨道耦合模型与单节车辆-轨道耦合模型在高速列车-轨道耦合动力学性能分析中的差异。 建立一种高速列车-轨道三维耦合动力学模型,模型中考虑列车的纵向动力学行为以及车间连接装置对列车中不同车辆动态响应的影响,并基本明确完善的列车-轨道耦合模型在高速列车-轨道耦合动力学性能分析中的重要性。 单节车辆-轨道耦合模型会过高地估计高速列车在运营过程中的振动响应和动力学性能指标,而完善的列车-轨道耦合动力学模型的计算结果则更加接近实际情况。
高速铁路;高速列车;轨道;列车-轨道耦合模型;车辆-轨道耦合模型

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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